Periodic Table of Elements

Front

Where are metals located on the periodic table?

Back

Metals are found on the left side of the periodic table.

Front

What does the number 12.011 represent in the periodic table?

Back

12.011 represents the atomic mass of an element.

Front

How many protons does the element with atomic number 79 have?

Back

The element with atomic number 79 has 79 protons.

Front

What is the term for a horizontal row of elements in the periodic table?

Back

A horizontal row of elements in the periodic table is called a Period.

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in an atom.

Front

What is the general trend of reactivity in metals as you move down a group in the periodic table?

Back

Reactivity of metals generally increases as you move down a group in the periodic table.

Front

What is the difference between atomic mass and atomic number?

Back

Atomic mass is the weighted average mass of an element's isotopes, while atomic number is the number of protons in the nucleus of an atom.

Front

What are the three main categories of elements in the periodic table?

Back

The three main categories of elements are metals, nonmetals, and metalloids.

Front

What is the significance of the periodic table's arrangement?

Back

The periodic table is arranged by increasing atomic number, which reflects the periodic trends in element properties.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What do you call the vertical columns in the periodic table?

Back

The vertical columns in the periodic table are called Groups or Families.